Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 6439 and 6442 the smallest integer that is 41480038 that is divisible by both numbers.
Least Common Multiple (LCM) of 6439 and 6442 is 41480038.
LCM(6439,6442) = 41480038
Least common multiple or lowest common denominator (LCD) can be calculated in three ways;
Least common multiple can be found by multiplying the highest exponent prime factors of 6439 and 6442. First we will calculate the prime factors of 6439 and 6442.
Prime Factorization of 6439
47 | 6439 |
137 | 137 |
1 |
Prime factors of 6439 are 47,137. Prime factorization of 6439 in exponential form is:
6439 = 471×1371
Prime Factorization of 6442
2 | 6442 |
3221 | 3221 |
1 |
Prime factors of 6442 are 2,3221. Prime factorization of 6442 in exponential form is:
6442 = 21×32211
Now multiplying the highest exponent prime factors to calculate the LCM of 6439 and 6442.
LCM(6439,6442) = 21×471×1371×32211
LCM(6439,6442) = 41480038
Factors of 6439
List of positive integer factors of 6439 that divides 6439 without a remainder.
1, 47, 137, 6439
Factors of 6442
List of positive integer factors of 6442 that divides 6442 without a remainder.
1, 2, 3221, 6442
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 6439 and 6442, than apply into the LCM equation.
GCF(6439,6442) = 1
LCM(6439,6442) = ( 6439 × 6442) / 1
LCM(6439,6442) = 41480038 / 1
LCM(6439,6442) = 41480038
(i) The LCM of 6442 and 6439 is associative
LCM of 6439 and 6442 = LCM of 6442 and 6439
1. What is the LCM of 6439 and 6442?
Answer: LCM of 6439 and 6442 is 41480038.
2. What are the Factors of 6439?
Answer: Factors of 6439 are 1, 47, 137, 6439. There are 4 integers that are factors of 6439. The greatest factor of 6439 is 6439.
3. What are the Factors of 6442?
Answer: Factors of 6442 are 1, 2, 3221, 6442. There are 4 integers that are factors of 6442. The greatest factor of 6442 is 6442.
4. How to Find the LCM of 6439 and 6442?
Answer:
Least Common Multiple of 6439 and 6442 = 41480038
Step 1: Find the prime factorization of 6439
6439 = 47 x 137
Step 2: Find the prime factorization of 6442
6442 = 2 x 3221
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 41480038 = 2 x 47 x 137 x 3221
Step 4: Therefore, the least common multiple of 6439 and 6442 is 41480038.